MathSorry again but I am terrible at math and I need help help writing this prob into an equation: 50 pounds of potato salad cost $39.50 and 50 pounds of bean salad cost $23.50. What was the difference in costs of the salads?
September 21, 2014

mathI need help writing an equation for this problem: for the school barbeque, room 107 bought 50 pounds of hot dogs for $69.50. How much did the hot dogs cost per pound?
September 21, 2014

PHYSICSA 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity.
August 23, 2014

Math algebraYou plan a party and spend $26 on decorations. Each of the tables will have 8 party favors and 8 individual flowers. The flowers cost $2.50 each. Which equation can you use to find the cost of each party favor? *please make an equation*
June 2, 2014

chemistryFind the a)partial pressure of ethylene oxide and b)the total gas pressure, after 30 hours in a reaction vessel at 415C if the initial pressure of ethylene oxide is 782mmHg. k= 2.05x 10^-4 t(1/2)=56.3 Part A) I converted hours to seconds, and used the formula ln(Pa)t = 108000s...
April 17, 2014

ChemistryThere are two flask, one filled with a)ice bath, and b)boiling water. Ice bath: 1.00 L O^2(g) at STP Boiling water: 1.00 O^2(g) If we want the pressure to remain at 1.00bar when the O^2(g) is heated to 373K, what mass of O^2 must we release from the flask? I know that I should...
September 24, 2013

chemistryIf a gas is made up of 3 parts hydrogen and 2 parts nitrogen...how much percentage of hydrogen is the gas made up of? The answer says 60%, but I don't understand how the came up with the answer
September 15, 2013

significant figures- chemistryI'm having trouble understanding significant figures. If a problem is requires two equations to finish, which of the original measurements do I use to figure out the significant figure? For ex. 3.001+4.32= 7.321. Then I use this answer for a different equation..for the ...
September 13, 2013

MathI really need help with this question please Break-even equation. Fill in the blank. The following table contains selected data concerning several outpatient clinics in the new Ambulatory Care Center at Hope University Hospital. Fill in the missing information. A. PRICE PER ...
August 14, 2013

Matha bus travels 240 kilometers at 60 kph and then returns at 40 kph.. what is the average speed in kilometers per hour for the round trip?
August 13, 2013

science32g of KCI OR KCIO3 IN 100ML OF WATER, AT WHAT TEMP WOULD IT BECOME SATURATED.. WHAT IF IT IS 37g? Thank you
March 27, 2013

governmentfive purposes of govt...protection,order,conflict resolution,econ. stabilty and public services....provide example of govt. that fulfills each purpose... I really dont about conflict resolution and econ. stability...Thank you
January 31, 2013

mathHow will I know the equation of a sequence if it is not arithmetic nor geometric sequence?
January 5, 2013

trogonometryA black bordering Sapphire St. is a right triangle. You start walking around the block, taking 125 paces on sapphire st. and 102 paces on Diamond st. a.) At what angle do Diamond and Sapphire Street Intersect ?
December 3, 2012

HealthcareYou are the manager of a variable hospital department and you just received your monthly budget results that state your salaries were higher and your supplies were lower than budgeted.
November 11, 2012

geometrygraph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU
October 27, 2012

geometrygraph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU
October 27, 2012

MathDetermine whether a regular decagon has reflection symmetry and/or rotational symmetry. If it has reflection symmetry, state the number of axes of symmetry. If it has rotation symmetry, state the angle of rotation. Explain how you determined your answers
October 25, 2012

physicsWe push a large box for three minutes. During that time, we exert a constant force of 200N on the box, but it does not move. How much work has been accomplished?
October 18, 2012

physicsa metal crate with a mass of 500 kg is pushed across a metal floor for 5 minutes.50N is applied horizontally.box does not move, extra 50 N is applied.after 2 minutes then box moves 4meters,how much work is done
October 18, 2012

trigA plane is flying 12,000 feet horizontally from a tall, vertical cliff. The angle of elevation from the plane to the top of the cliff is 45degrees, while the angle of depression from the plane to a point on the cliff at elevation 8000 feet is 14degrees. Find the height of the ...
October 15, 2012

Help! Science....Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
September 5, 2012

science... Help me urgent!!Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
September 4, 2012

SciencePlease help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
September 4, 2012

mathA 10-item multiple choice test with 4 options (A,B,C,D) is given to a class in English, what is the probability that the students answers are of the same letters
June 29, 2012

Chemistry / Gas Law350.0 mg of an unknown gas effuses through a small hole into a 2.00 L flask. It effuses at a rate 1.27 times faster than sulfur dioxide at the same temperature, 20.0 degree C. What pressure would it exert in the 2.00 L flask?
March 8, 2012

ChemistryIt is possible, although less accurate, to do a standard addition with only one sample. An unknown Fe sample was analyzed by AAS and gave an absorbance reading of 0.160. To the same sample we added 1.5ppm Fe and the new absorbance reading was 0.205. Calculate the ppm of the ...
March 5, 2012

social studiesIf I could be provided with some good qualitie questions to interview an elementary teacher,along with some guidance on writing the essay.
February 15, 2012

physicsIf the rotational speed of a platform is doubled, how does the linear speed anywhere on the platform change?
December 8, 2011

Physics A student initially at rest on a frictionless frozen pond throws a 1 kg hammer in one direction. After the throw the hammer moves off in one direction while the student moves off in the other direction. Which of the following correctly describes the above situation? The ...
November 14, 2011

BusinessConsider the following statement: Most disagreements or differences of opinion are more often a result of faulty, misunderstood, or confusing premises, rather than faulty reason from a valid premise. Would you agree or disagree with this statement? Explain. What are some ...
September 13, 2011

physicsA ball is thrown upward from the top of a 24.4-m-tall building. The ball's initial speed is 12 m/s. At the same instant, a person is running on the ground at a distance of 30.2 m from the building. What must be the average speed of the person if he is to catch the ball at ...
August 30, 2011

trigonometrya kite has 120 m of string attached to it when it flies at an elevation of 5 degrees. How far is it above the hand holding it? ( assume that the string is taut)
August 7, 2011

trigonometrya ladder which is 5 m long leans against a nail on the wall.it makes an angle of 62 derees with the ground. find the height of the nail above the ground and the distance of the foot of the ladder from the wall.
August 7, 2011

trigonometryat a point 27 m from the front of a pole, the angle of elevation of the top of the pole is 53. find the height of the pole
August 7, 2011

statisticsFor a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size- (b) 3.
May 12, 2011

Mathyou roll a number cube, what are the odds in rolling a 1 or 4?
May 8, 2011

math.the perimeter of a rectangle is 30 m more than three times its width. if the perimeter is 84 m, find the length and width of the rectangle.
January 15, 2011

chemistryusing the balanced equation for the fermentation reaction, calculate for the theoretical amount of alcohol to be produced using 10 grams of sucrose. 0.79 g/ml is ethanol's density.
January 6, 2011

t testA researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high numbers indicate ...
December 17, 2010

t testWhat is the power of each of the following studies, using a t test for dependent means (based on the .05 significance level
December 17, 2010

calculus(1 pt) A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 15 dollars, the company sells 132 units per week. When the price is 27 dollars, the number of DVDs sold decreases to 84 units per week. Answer the...
October 13, 2010

calculus(1 pt) A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 15 dollars, the company sells 132 units per week. When the price is 27 dollars, the number of DVDs sold decreases to 84 units per week. Answer the...
October 12, 2010

Derivatives- MathCan someone explain how to find the derivative of : 1. y= 5^ãx / x And the second derivative of: y= xe^10x For this question I got up to the first derivative and got this y = e^10x + 10xe^10x but I can't seem to get the correct answer for the second derivative.
April 19, 2010

algebra3(q+1)-9=23 3q *3-9=23 3q*3 -9+9=23+9 I am not sure what to do with the 3 I think that I am suppose to add 23+9 on the right side. this is where I get confused.
January 11, 2010

BiologyWill this answer be correct? Schizophrenia is not deadly, but the effects of a schizophrenic episode may turn deadly.
May 26, 2009

BiologyHow virulent is the disease schizophrenia? Can someone help me with answering this question? I do not understand what they are asking.
May 26, 2009

Help on Focus Statement for ReportCould I change that focus statement to: By analzing the repeating elements found in an archetypal quest, it will be made apparent that the movie, Saving Private Ryan, follows the archetypal design. btw, Thanks for your help! (:
May 10, 2009

Help on Focus Statement for ReportIs this written correctly? I wrote this for my focus statement on a report I am currently writing. Please double check. Thank you~! In this report, I will justify why the movie Saving Private Ryan follows the Archetypal design by analzing the repeating elements which one would...
May 10, 2009